class student:
    def __init__(self, name, sex, number):
        self.name = name
        self.sex = sex
        self.number =  number


# the following 4 are sequence
list = [1,2,'sex']
list[1]= 3
print(list)

tuple_yuanzu_static =(1,2,'name')

set_jihe_withoutOrderAndOnlyOne = {1,2,'description'}
# use for id storage

# -this is a bit smaller divider
dictionary_zidian_KeyValue_KeysOntRepeat ={'name':'ss','age':12}
# for attribute information & configuration & mapping INFOmation also extremely high search efficeincy


# divider
# input()   /print()

a = 2**4
print(a)
print(10//3)

#
# in  ||  not in  FOR above mentioned2 sequence
print(1not in list,2in tuple_yuanzu_static,3in set_jihe_withoutOrderAndOnlyOne,
      4in dictionary_zidian_KeyValue_KeysOntRepeat)

# divider
# 左移n位相当于操作数乘以2的n次方，根据此原理可借助乘法运算符实现按位左移操作。
print(1<<4)
# 右移n位相当于操作数除以2的n次方并向下取整，根据此原理可借助除法运算符实现右移功能。
print(32>>4)
#  &=\=and; |=\=or
# determine whether it is an even number
print(9&3,2&3,2|4,3|9,'what')
